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L. KONIGSBERG. GUIDE FOR PIPE CUYTTERS. 'APucmon min MAY s, 1919.

. Patented. mig. 5, 1.919.

2 SHEETS-SHEET l.

m @il l THE CDLUMBIA PLANOQRAPH co., wAsHlNa'roN, me.

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GUIDE FOR PIPE CUTTERS.

APFLICMIIGN FILED MAY H. I9l9.

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THE COLUMBIA PLANoGk/nm co.. MSHINTOM D. C.

uNiTED STATES PATENT oEEIcE.

JOSEPH KONIGSBEEG, or NEW YORK, N. Y., AssIGNoE To LENA KONIGSBEEG, or

. NEwYoEK, N. Y. y

A y GUIDE. For. rirE-cuTTEEs.

To all whom t 'may concern.' y

Be it known that I, JOSEPH KONIGSBERG, a citizen of the United States, and resident of the borough of Bronx, city and State of New York, have invented a new and useful Guide Vfor Pipe-Cutters, of `which theifollowing is a specication. i This invention relates to a guide for pipe cutters and has for its object to provide a device which will hold u the pipe cutterat right angles to the pipe so that the cutters in their path around the pipe will, make a true and square cutf' A further object is to provide certain improvements in the form, construction and arrangement of the several parts of the device whereby i the above mentioned object and other features of advantage maybe effectively attained. i i

Practical embodiments of my invention are represented in the accompanying drawings in which,

Figure 1 represents a side elevation of my improved device applied to a piece of pipe. Fig. 2 represents a front elevation of the same.

Fig. 3 represents a vertical `section taken in the plane of the line III-III of Fig. 1, looking in the direction of the arrows.

Fig. 4 represents a `vertical section taken in the plane of the: line IV--IV of Fig. 2, looking in the direction of the arrows.`

f Fig. `3 represents a front elevation of the device, partly in section, as applied to a pipe of smaller diameter thanV that shown in the preceding views, the cutter being Vrepresented in dotted outline. r l

Fig. 6 represents a side elevation: of 4a modified form of device. u r3 i Fig. 7 represents a front elevation of the Sande. "l: "1

Fig. 8 represents a vertical section` taken in the plane of the line VIII- VIII of F ig. 6, looking in the direction ofthe arrows. lL

Fig. 9 representsa vertical section taken in the plane of theline IXf-IX? ofLFigQ',

`looking in the direction of the arrows, and

Fig. 10 represents'a `front elevation of the device having certain of the parts b roken away and in section,as applied to a pipe of In the form shown in Figs. 1 to 5 inclu sive, the device comprises a collet denoted by 1, a strap by 2, having diametrically disposed arms 3 4 and a swivel 5 carried by Specification of Letters Patent.`

the arm 2. The collet 1 has an irregular shaped hole 6 therethrouglnso that pipes of variousv diameters may be accommodated therein.` The `collet is also provided with a screw? threaded therein, which is arranged to engage the pipe Sfand force it against the wall of the hole 6, thereby securely fastening the collet to pipe. An annular groove 9 is provided in the collet forthe reception of the strap` 2, which `has a swinging member 10 hinged lat 11 and secured to the arm 3 by a bolt 12. The swivel 5 is mounted in the outer end ofthe arm 3 and is provided with a recess 13 arrangedto receive the handle 14 Vof the pipe cutter frame 15which is of well known and approved construction; The handle 14 is held in the recess 13 by means of a spring actuated plunger 16, housed in the swivel 5 with its free end projecting across the recess. `A pin 17 is secured to the plunger 16 by which it may be manipulated. i

The pipe cutter frame 15.` is guided by means of a removable device secured thereto, which device comprises side plates 18`-19, which have -inwardly `disposed lugs 20-21 arranged to overhang and engage the pipe cutter frame between the cutters 22-23. These plates are held in position by means of `a bolt 24 and thumb nut 25. A guide bar 26 :is interposed between theg plates and fulcrumed .on the bolt24.` TheA lower end of the guide-bar 26 `is arranged to reciprocate in slot 27` in the arm 4.

In the form shown in Figs. 6to 10 inclusive, the collet 28 has one side open to receive the pipe to be cut and provided with teeth 29 whichengage .the s pipe when clamped therein.` .The strap 2is also cutaway toco# `incide with the open portion of the collet, and held in` rotatableengagement with the collet plate 30 secured tothe collet by screwsl.- i

i `Assumingthepipe cutter` is placed on the pipe at the point where the pipeisto be cut, andthecollet loosely mounted on the pipe `in position "to receivethe` strap 2, which `is rotatably; "fixed :thereto by the: bolt 12, the collet, arm` and swivel are brought to a position where the handle 14 may be placed in the recess.` 13 andthe guide bar26 and plates small diameter, and the pipe cutter removed@y 1184419 located in i position on the cutter frame with the guide bar in theslot 27. After the parts are in proper order the screw 7 may be brought to bear on the pipe and the collet firmly Secured to the pipe. The cutting of the `Patented Aug. 5, 1919. Application filed. May 8, 1919. Serial No. 295,523.

pipe is performed in the usual manner and the cutter is guided by the parts coacting with thecutter and the strap rotating in the groove of the collet. The handle of the cutter is held by the arm .3 and swivel 5 while the cutter frame is guided by the plates and the guide bar working in the slot 27 in the arm 4, which is in alinement with the recess 13 in the swivel 5. Thus it will be seen that both 'ends of the cutter are guided thereby assuming a true and square cut at right an gles to the pipe.

While I haveshown in Figs. 1 to 4 and 6 to 9 inclusive, a guidebar 26 coacting with they arm 4I wish 4it understood that the guide bar may be omitted, as shown in Fig. 5, and the device beoperated with equally as good effect.-

It' will be also understood that various changes may be resorted to in the form, construction, and arrangement of the several parts, without departing from the spirit and `scope of my invention; and hence I Ado not intend to be limited rto the specific details herein shown and described except as theymay be included in the claims.

I'Vhat I claim is:

1. A guide vfor :pipe cutters comprising, a collet for the pipe to be cut, a strap rotatably mounted on said collet, an arm on said strap and a swivel on said arm for receiving the handle of the pipe cutter.

2. A guide forj pipe cutters comprising,

`a collet for the pipe to be cut, a hinged strap rotatably mounted on said collet, an arm on said strap,- and a swivel on said arm for rea collet vhaving an elongated opening for accommodating pipes of diiferent diameters vto be cut, astraplrotatably mounted onsaid collet, an arm on said strap, and Va swivel on said arm for receiving the handle of the pipe cutter.l

`4. A guide for pipe cutters comprising, a collet for the pipe to be cut, means for securing said collet to the pipea strap rotatably mounted on said shaft, an arm on .said strap, andarswivelon said arm for receiving the handle of. the pipe cutter.

5. A guidefor pipe cutters comprising, a collet for the pipe to be out, means for securing said collet to th'egpipe, a strap rotatablyl mounted on the collet, an arm on said'strap, alswiv'el on said armfor receiv- 'ingk the handle of the pipe icuftter,:and means oni the swivellfor locking the handle therein.

. 16A. A guide for pipe cutters comprising,

said strap, a swivel on said arm 'for recciving the handle of the pipe cutter, and a spring actuated means on the swivel for locking the handle therein.

7 In combination, a pipe cutter and a guide therefor comprising, a collet for the pipe to be cut, means for securing said collet to the pipe, a strap rotatably mounted on the collet, arms diametrically opposed on said strap, one of said arms having a swivel for receiving the handle of the pipe cutter, and a guide bar carried by the pipe cutter adapted to engage the other arm for holding the cutter in alinement with the strap.

8. In combination, a pipe cutter and a guide therefor comprising, a collet for the pipe to be cut, means for securing said colletto the pipe', a strap rotatably mounted on the collet, arms diametrically opposed on said strap, one of said arms having a swivel for receiving the handle of the pipe cutter, and a guide bar removably secured to the pipe cutter and adapted to engage the other arm for holding the cutter in alinement with the strap. y

y9. In combination, a pipe cutter and a guide therefor comprising, a collet for the pipe to be cut, means for securing said collet to the pipe, a strap rotatably mounted on the collet, arms diametrically opposed onvsaid strap, one of said arms having a swivel for receiving the handle of the pipe cutter, side plates carried by the cutter and a. guide bar carried by the side plates in position to engage the other arm for holding the cutter in alineinent with the strap.

10. In combination, a pipe cutter and a guide therefor comprising, a collet for the pipe to be cut, means for securing said col let to the pipe, a strap rotatably mounted on the collet, arms diametrically opposed on said strap, one of said arms having a swivel for receiving the handle of the pipe cutter, side plates, a guide bar, and a eo1nmon means for securing the side plates to the cutter and the guide bar to the side plates, said guide bar 'being adapted to engage the other arm for-holding the cutter in alinement with the strap.

In testimony that I claim the foregoing as my invention, I have signed my name this 28th day of April, 1919.

JOSEPH KONIGSBERG.

Genies ofvthis .pazeiztmayy beobtainediforfve cents veach, by addressing the Commissioner of Patents. Y c '1. Washington, D. 

